package com.carl.math;

import java.util.Scanner;

public class question_06 {


    public static void main(String[] args) {
        //油耗
        Scanner scanner = new Scanner(System.in);
        int kil = scanner.nextInt();
        double cost = scanner.nextDouble();
        System.out.printf("%.3f km/l",kil / cost);
    }
}
